8346847: [s390x] minimal build failure

Reviewed-by: clanger
Backport-of: 807f6f7

Author: offamitkumar

src/hotspot/cpu/s390/vm_version_s390.cpp

@@ -308,6 +308,12 @@ void VM_Version::initialize() {
   if (FLAG_IS_DEFAULT(UseMontgomerySquareIntrinsic)) {
     FLAG_SET_DEFAULT(UseMontgomerySquareIntrinsic, true);
   }
+
+  // The OptoScheduling information is not maintained in s390.ad.
+  if (OptoScheduling) {
+    warning("OptoScheduling is not supported on this CPU.");
+    FLAG_SET_DEFAULT(OptoScheduling, false);
+  }
 #endif
   if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
     FLAG_SET_DEFAULT(UsePopCountInstruction, true);
@@ -323,12 +329,6 @@ void VM_Version::initialize() {
   if (FLAG_IS_DEFAULT(UseUnalignedAccesses)) {
     FLAG_SET_DEFAULT(UseUnalignedAccesses, true);
   }
-
-  // The OptoScheduling information is not maintained in s390.ad.
-  if (OptoScheduling) {
-    warning("OptoScheduling is not supported on this CPU.");
-    FLAG_SET_DEFAULT(OptoScheduling, false);
-  }
 }